In China,it is quite (nature)（） for people to go back home for the Spring Festival.

Nobody knows how long and how seriously the shakiness（不穩(wěn)定） of big businesses will （） down the economy.

After she became a lawyer, she decided to （）criminal law.

She couldn't（）laughing at him in those clothes.

Mr. Sanders has been asked to（）the next meeting of the committee.

The price they offered for my old car was so low that I（）it down.

The aircraft vanished without（）

His company promised to pay for his health （）in addition to other benefits.

I don't know who on（）stole the diamond last night.

I was（）than angry when I saw how they'd ruined the landscape.